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Finding the Fourth Proportional to 165,892.40, 248,838.60 and 102,906.80

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Solution

The fourth proportional to 165,892.40, 248,838.60 and 102,906.80 is: 154,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,892.40 : 248,838.60 = 102,906.80 : x
  2. Step 2: Convert to fraction form
    165,892.40/248,838.60 = 102,906.80/x
  3. Step 3: Cross multiply
    165,892.40x = 248,838.60 × 102,906.80
  4. Step 4: Simplify right side
    165,892.40x = 25,607,184,042.48
  5. Step 5: Solve for x
    x = 25,607,184,042.48/165,892.40
  6. Step 6: Final answer
    x = 154,360.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.